參數(shù)資料
型號(hào)： TPS6734IPE4
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 1.5 A SWITCHING REGULATOR, 170 kHz SWITCHING FREQ-MAX, PDIP8
封裝： ROHS COMPLIANT, PLASTIC, DIP-8
文件頁(yè)數(shù)： 22/22頁(yè)
文件大?。?/td> 479K
代理商： TPS6734IPE4
TPS6734I
FIXED 12-V 120-mA BOOST-CONVERTER SUPPLY
SLVS127A – AUGUST 1995 – REVISED JANUARY 1999
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
The TPS6734 operates in a boost circuit as shown in Figures 1 and 11. Figure 1 shows the typical application
circuit, which generates 12 V from a nominal 5-V source. The circuit is ideal for processor interface for energy
management, because EN can be controlled by logic signals to place the 12-V source into the shutdown mode
(3-
A current drain) when 12 V is not needed. An example of such an application is a flash memory device that
requires 12 V for the erase cycle.
discontinuous mode
The circuit shown in Figure 1 operates in discontinuous mode over most of the range of input voltage and output
current. In discontinuous mode, current through the inductor begins at zero, rises to a peak value, then ramps
down to zero each cycle as shown by the voltage and current waveforms in Figure 8. The ringing in the voltage
waveform on OUT results from a resonance between the inductor and the power switch capacitance and is
normal for discontinuous operation.
0
02
4
6
8
10
5
15
DISCONTINUOUS MODE
20
12
14
16
18
10
1
0.5
0
I–
Inductor
Current
–
A
t – Time –
s
VI = 5 V
VO = 12 V
IL = 50 mA
V
oltage
at
Out
–
V
Figure 8
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS6735EVM 功能描述:電源管理IC開(kāi)發(fā)工具 Neg 5V 200mA Vout DC/DC Inverter RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS6735ID 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 200mA 12V DC/DC RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS6735ID 制造商:Texas Instruments 功能描述:IC's
TPS6735IDG4 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 Fixed Neg 5-V 200-MA Inv DC/DC Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS6735IDR 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 200mA 12V DC/DC RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
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